Hate to see one of the best threads on TB relegated to page 3 (anyone else remember the old UK Sun newspaper?), so thought I’d add another ha’penny’s worth.
On my own mini quest in search of dirt heaven, I dug out and dusted off my old Gallien-Krüger Diesel Dawg. It’s an ugly monster of a box, mostly empty inside, but it produces what is still to my ear one of the best bass distortion sounds there are. I’ve had to remove all my rarely used modulation pedals from the board and still play pedal tetris in order to accommodate it, but my god it was worth it. Stacked straight after the Broadcast (now out of the dirt loop and in the main chain) it does everything from G-K grind to wall of sound, and has a very flexible EQ section to boot. Add the other two pedals in the dirt loop, and it’s a busy night on the high-dependency psych ward I used to work on.
There’s a thread here about rehousing the Diesel Dawg in more modest enclosures, and I’ve been tempted, but its native kennel seems somehow appropriate, and I don’t mind that it’s elbowed some of the hangers-on off the playground. Focuses the attention on what’s important.
I have no idea if these are readily available on the used market, but seems just the ticket for a metal set.
Ebay currently holds one, based in Japan. Reverb and my local market are empty.
It seems it's a copy of the high gain channel of the 2001RB ?
Maybe other pedal builders have targeted that particular circuit, too?